Improvement in corn-mills



2 Sheets-Sheet 2.

1. A. HEDGES.

coRNMILL.

Patented J'u1y11,1876.

N. PETERS. FNOTLLI'IHOGI'IAF'HERI WASHINGTON, D. C.

- shaft.

UNITED STATES PATENT QFFIGE ISAAQA. HEDGES, OF ST. LOUIS, MISSOURI.

IMPROVEMENT IN CORN-MILLS.

Specification forming part of Letters Patent No. 179,789, dated July 11,1876; application filed February 8, 1876.

To all whom it may concern:

Be it known that I, ISAAC A. Hnnens, of the city of St. Louis, county ofSt. Louis, and State of Missouri, have invented a new and usefulImprovement in Corn-Mills, which improvement is fully set forth in thefollowing specification, reference being bad to the accom panyingdrawings.

This is an improvement in the hopper and driving mechanism; and myimprovement consists, partly, in the combination of the cone and thelower part of the hopper. The cone has a neck at its apex, which passesup through a hub at the bottom of the lower portion of the hopper, andis keyed and bolted thereto, and the upper part of said portion of thehopper has atoot'hed rim, engaged by a bevel-pinion upon thedriving-shaft. The toothed rim of this portion of the hopper has asmooth beveled under surface, which bears on an anti-friction rollerbeneath it, and upwardly against the spur-pinion ofthe main There arealso other bearings for this part of the hopper at points at a distancefrom the anti-friction roller. The upper part of the hopper is fixed,and secured to its inner side is a depending bar, which extends downtheinner surface of the rotating part of the hopper, and agitates thecorn therein, so as to cause it to descend through the bottom of thehopper to the grinding part of the mill, and this forms another featureof my invention.

The cone and concave are substantially like those described in my patentdated November 23, 1875, and no novelty is claimed in these parts.

Figure 1 is a perspective view. axial section. v

A is the bed of the mill, and B the standing frame. '0 is a shaft,having journal-bearing in the frame, and carrying a pulley, D, for adriving-belt. The shaft Q extends across the upper and fixed part E ofthe hopper, and carries a bevel-cog pinion, G, which engages a toothedrim, H, of the lower and rotating part F of the hopper. The rim orflange H is smooth at the under side, and has bearing Fig. 2 is an 'onan anti-friction roller or traveler, I, vertically beneath thecog-pinion G. The arbor of the friction-wheel or traveler is madevertically adjustable in the frame, said arbor passing through a slot,and being held by a screw-nut. At a distance from the anti-frictionroller or traveler I are adjustable bearings J for the rim-flange H,these bearings J being made vertically adjustable, in the same manner asthe anti-friction roller I, so as to enable their adjustment to a pointjust below the surface of the flange H when the mill is runningsmoothly. This would prevent the rotating part of the hopper from beingthrown out of place, and would not be in contact with the periphery atordinary times. The lower part F of the hopper has radial bars f,connecting itshub f to the outer part, and its hub has .an axial hole,in which fits the neck-7c of the cone K. This neck is keyed in by key70, or other suitable connection, and is sustained also by a bolt, L,passing axially through the neck, and through a cup-formed washer, l,above which is a nut, l, screwing on the upper end of the bolt. The partF of the hopper has an annular bearing-rib, f resting in an annularbearing-groove, m at the top m of the concave casting M. This bearing issimilar to that described in my patent of November 23, before alludedto, and no novelty is claimed for the same in this application. Saidbearing forms a steady support for the cone in the concave, and alsoforms the foot-support for the rotating part of the hopper. m are bars,connecting the top m with the outer part of casting M, and between thesebars are spaces, between which the corn falls. N is a bar, secured tothe fixed part E of the hopper, and which descends intothe part F, andis curved, so as to be parallel with ,the inner surface of F. Thepurpose of this bar is to agitate the corn in the hopper and prevent itfrom becoming lodged against the sides of the rotating part F, the bar Nstanding near to the surface, and, besides dislodging the corn from thesurface, prevents its rotation with the hopper, and, from this,acquiring a centrifugal force that would tend to prevent its descentbetween the bars f.

I claim 1. The combination of cone K, rotating part of hopper F, toothedrim H, and driving-wheel D, constructed and combined substantially asset forth.

2. The combination, with the cone K and 4. The combination of the fixedpart E and. hopper-bottom F, firmly attached together, of rotating partF of the hopper and the agitatthe bearing-Wheel and blocks Iand J,substa-ning-bar N, substantially as set forth. tially as set forth.

'3. The combination, with the cone K and ISAAC A. HEDGES. hopper-bottomF, firmly attached together, of Witnesses: the annular bearing msubstantially as set SAML. KNIGHT, forth. H. HUTGHINS.

